Eile-hawdle



UNITED STATES PATENT GFIPICE.

WM. W. DRAPER, OF GREENFIELD, MASSACHUSETTS.

FILE-HANDLE.

Specification forming part of Letters Patent No. 22,635, dated January 18, 1859; Ressued April 11, 1871, No. 4,333.

To all whom it may concern:

Be itknown that I, IVILLIAM 7. DnArnR, of Greenfield, in the county of Franklin and State of Massachusetts, have invented an Improvement in File-Handles or Tool-Holders; and I do hereby declare that the same is fully described and represented in the following specification and the accompanying drawings of which- Figure l, is an external view, and Fig. 2, a longitudinal section of one of the said tool holders. F ig. 3, is a longitudinal section of it, such being taken in a plane at right angles to that in which Fig. 2, is taken.

The nature of my invention consists in the combination of a centering socket and spring with fastening jaws and their operative mechanism applied within a handle substantially in manner and to operate as hereinafter described.

The handle A, (see Figs. l and 2,) is formed with a cylindrical socket or chamber, cc, for the reception of a helical spring, B, whose lower end rests on the bottom of the said chamber. The upper end of the said spring is fastened to a centering socket piece, C, formed with a conical or tapering recess, b. On the handle is screwed or other` wise fastened, a metallic ferrule, D, within which a short tube, E, is screwed, such tube having hinged to its bore, two tapering jaws, I?, F, formed and arranged in the ferrule as shown in the drawings. In'order to fasten a file or other tool to this handle, its tang should be inserted between the jaws and into the socket piece of the handle, the tang being pressed downward against the spring to the required distance. Under these circumstances, if the handle be grasped firmly in one hand and the file or tool be rotated axially, or the lile grasped in one hand and the handle turned or rotated by the other the tube may be revolved within the ferrule or the ferrule revolved on the tube so as to draw the jaws within the handle and against the bore of the ferrule in such manner as to cause them 4to firmly grasp the tang. Tere we to dispense with the centering socket piece and spring, the jaws might still be made to grasp the tang, but there would be considerable difficulty in adjusting the file or tool axially with respect to the handle. But with the centering socket piece and the spring, the adjustment is effected with great accuracy.

Besides serving to centralize the tool with respect to the jaws and handle, the centering socket piece and spring enable a person to maintain the tang at any desirable depth within the jaws during the operation 0f closing them together. They also serve to expel the tool from the handle as soon as the grasp of the jaws on it may be removed from it.

I do not claim the application of jaws to 'tool handles; nor do I claim the above described mode of operating suoli jaws, but

W'hat I do claim is- The centralizing socket or socket piece and spring in combination with the handle and the fastening jaws and their operative mechanism applied within the said handle, the whole being made to operate substantially in manner as herein-before described.

In testimony whereof, I have hereunto set my signature.

. VILLIAM 7. DRAPER.

Witnesses MATTI-inw CHAPMAN, CHARLES MA'r'rooN.

[FIRST PRINTED 1911.] 

